Chapter 11 Of the origin, life, reign, name and death of Jupiter, and of Saturn and Uranus.
Who, then, is so senseless as to imagine that he reigns in heaven who ought not even to have reigned on earth? It was not without humour that a certain poet wrote of the triumph of Cupid: in which book he not only represented Cupid as the most powerful of the gods, but also as their conqueror. For having enumerated the loves of each, by which they had come into the power and dominion of Cupid, he sets in array a procession, in which Jupiter, with the other gods, is led in chains before the chariot of him, celebrating a triumph. This is elegantly pictured by the poet, but it is not far removed from the truth. For he who is without virtue, who is overpowered by desire and wicked lusts, is not, as the poet feigned, in subjection to Cupid, but to everlasting death. But let us cease to speak concerning morals; let us examine the matter, in order that men may understand in what errors they are miserably engaged. The common people imagine that Jupiter reigns in heaven; both learned and unlearned are alike persuaded of this. For both religion itself, and prayers, and hymns, and shrines, and images demonstrate this. And yet they admit that he was also descended from Saturn and Rhea. How can he appear a god, or be believed, as the poet says, to be the author of men and all things, when innumerable thousands of men existed before his birth— those, for instance, who lived during the reign of Saturn, and enjoyed the light sooner than Jupiter? I see that one god was king in the earliest times, and another in the times that followed. It is therefore possible that there may be another hereafter. For if the former kingdom was changed, why should we not expect that the latter may possibly be changed, unless by chance it was possible for Saturn to produce one more powerful than himself, but impossible for Jupiter so to do? And yet the divine government is always unchangeable; or if it is changeable, which is an impossibility, it is undoubtedly changeable at all times.
Is it possible, then, for Jupiter to lose his kingdom as his father lost it? It is so undoubtedly. For when that deity had spared neither virgins nor married women, he abstained from Thetis only in consequence of an oracle which foretold that whatever son should be born from her would be greater than his father. And first of all there was in him a want of foreknowledge not befitting a god; for had not Themis related to him future events, he would not have known them of his own accord. But if he is not divine, he is not indeed a god; for the name of divinity is derived from god, as humanity is from man. Then there was a consciousness of weakness; but he who has feared, must plainly have feared one greater than himself. But he who does this assuredly knows that he is not the greatest, since something greater can exist. He also swears most solemnly by the Stygian marsh: “Which is set forth the sole object of religious dread to the gods above.” What is this object of religious dread? Or by whom is it set forth? Is there, then, some mighty power which may punish the gods who commit perjury? What is this great dread of the infernal marsh, if they are immortal? Why should they fear that which none are about to see, except those who are bound by the necessity of death? Why, then, do men raise their eyes to the heaven? Why do they swear by the gods above, when the gods above themselves have recourse to the infernal gods, and find among them an object of veneration and worship? But what is the meaning of that saying, that there are fates whom all the gods and Jupiter himself obey? If the power of the Parcæ is so great, that they are of more avail than all the heavenly gods, and their ruler and lord himself, why should not they be rather said to reign, since necessity compels all the gods to obey their laws and ordinances? Now, who can entertain a doubt that he who is subservient to anything cannot be greatest? For if he were so, he would not receive fates, but would appoint them. Now I return to another subject which I had omitted. In the case of one goddess only he exercised self-restraint, though he was deeply enamoured of her; but this was not from any virtue, but through fear of a successor. But this fear plainly denotes one who is both mortal and feeble, and of no weight: for at the very hour of his birth he might have been put to death, as his elder brother had been put to death; and if it had been possible for him to have lived, he would never have given up the supreme power to a younger brother. But Jupiter himself having been preserved by stealth, and stealthily nourished, was called Zeus, or Zen, not, as they imagine, from the fervor of heavenly fire, or because he is the giver of life, or because he breathes life into living creatures, which power belongs to God alone; for how can he impart the breath of life who has himself received it from another source? But he was so called because he was the first who lived of the male children of Saturn. Men, therefore, might have had another god as their ruler, if Saturn had not been deceived by his wife. But it will be said the poets feigned these things. Whoever entertains this opinion is in error. For they spoke respecting men; but in order that they might embellish those whose memory they used to celebrate with praises, they said that they were gods. Those things, therefore, which they spoke concerning them as gods were feigned, and not those which they spoke concerning them as men; and this will be manifest from an instance which we will bring forward. When about to offer violence to Danae, he poured into her lap a great quantity of golden coins. This was the price which he paid for her dishonour. But the poets who spoke about him as a god, that they might not weaken the authority of his supposed majesty, feigned that he himself descended in a shower of gold, making use of the same figure with which they speak of showers of iron when they describe a multitude of darts and arrows. He is said to have carried away Ganymede by an eagle; it is a picture of the poets. But he either carried him off by a legion, which has an eagle for its standard; or the ship on board of which he was placed had its tutelary deity in the shape of an eagle, just as it had the effigy of a bull when he seized Europa and conveyed her across the sea. In the same manner, it is related that he changed Io, the daughter of Inachus, into a heifer. And in order that she might escape the anger of Juno, just as she was, now covered with bristly hair, and in the shape of a heifer, she is said to have swam over the sea, and to have come into Egypt; and there, having recovered her former appearance, she became the goddess who is now called Isis. By what argument, then, can it be proved that Europa did not sit on the bull, and that Io was not changed into a heifer? Because there is a fixed day in the annals on which the voyage of Isis is celebrated; from which fact we learn that she did not swim across the sea, but sailed over. Therefore they who appear to themselves to be wise because they understand that there cannot be a living and earthly body in heaven, reject the whole story of Ganymede as false, and perceive that the occurrence took place on earth, inasmuch as the matter and the lust itself is earthly. The poets did not therefore invent these transactions, for if they were to do so they would be most worthless; but they added a certain colour to the transactions. For it was not for the purpose of detraction that they said these things, but from a desire to embellish them. Hence men are deceived; especially because, while they think that all these things are feigned by the poets, they worship that of which they are ignorant. For they do not know what is the limit of poetic licence, how far it is allowable to proceed in fiction, since it is the business of the poet with some gracefulness to change and transfer actual occurrences into other representations by oblique transformations. But to feign the whole of that which you relate, that is to be foolish and deceitful rather than to be a poet.
Source: The Divine Institutes (New Advent)